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Suppose that a=2i + J,. B = i - 4j + k , C= j + k,. What is the magnitude of the vector 2a - b + c. ?

Posted by Pankhuri Singh 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State and Prove parallelogram law of vector addition??

Posted by Aryan Chahal 7 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 3 months ago

but to prove it here is not possible

2Thank You

Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 3 months ago

if two vectors are represented by the two adjacent sides of a parallelogram by both magnitude and direction from a point, then their resultant can be represented by the diagonal of the parallelogram from the same point.....

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What's is centripetal acceleration

Posted by Sayyed Mohmmad Haider 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Amitabh Gupta 7 years, 3 months ago

The.........

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On a rainy day rain is falling vertically downward with a Speed of 10m/s in west to east direction .in what direction he should hold an umbrella to protect himself ?

Posted by Pushpender Chauhan 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 3 months ago

Answer of this question, u will get in this app in the ncert solution.. section

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Name two physical quantities having dimensional formula ml2t2

Posted by Ankita Singh 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Priyanshu Singh 7 years, 3 months ago

Work ,energy

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why does person lower his hands while catching a ball

Posted by Rajesh And Kajal Kushwaha 7 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Suryansh Sharma 7 years, 3 months ago

Due to impulse which is defined as total effect of force Impulse is equal to force × time Than while catching a ball force is more than time so cricket player lower his hand to decrease the effect of force

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Aman Kumar 7 years, 3 months ago

Nice answer ?

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Mahesh Rd 7 years, 3 months ago

To increase the time of contact of the ball with his hand so that force exerted on his hand by the ball is less

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Projectile motion is which kind of motion

Posted by Rishu Raj 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 3 months ago

A type of parabolic motion... ??

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Derive the relation by using Homogenity principle .Unit 1.

Posted by Chanchal Mudgal 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Elastic collision in one Dimension

Posted by Tabssum Naz 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Rohin Jaswal 7 years, 3 months ago

Long dimension please going on YouTube

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What is the condition for 2 vectors to be collinear?

Posted by Ruchi Shandilya 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 7 years, 3 months ago

Two vectors are collinear, if any of these conditions done:
Condition of vectors collinearity 1. Two vectors a and b are collinear if there exists a number n such that
a = n · b
Condition of vectors collinearity 2. Two vectors are collinear if relations of their coordinates are equal.
N.B. Condition 2 is not valid if one of the components of the vector is zero.
Condition of vectors collinearity 3. Two vectors are collinear if their cross product is equal to the zero vector.
N.B. Condition 3 applies only to three-dimensional (spatial) problems.

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Give physics numericals on topic vector

Posted by Kushagra Sharma Kapilsharma 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Prince Kumar 7 years, 3 months ago

If a=i-j, b=i+j, c=i+3j+5k and 'n' is a unit vector such that b.n=0, a.n = 0 then whta is the value of | c.n |.

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Elastic collision in one dimensional theorem

Posted by Devendra Kumar Kumar 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Topics included in unit2 kinematics

Posted by Rajinder Singh 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Give two example physical quantity having change but not dimension

Posted by Immortal Prince 7 years, 3 months ago

CBSE > Class 11 > Physics

5 answers

Mani Shankar 7 years, 3 months ago

Work or Energy

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Ayush Pandey 7 years, 3 months ago

Kinetic energy and potential energy have same dimension but different quantity

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Immortal Prince 7 years, 3 months ago

It doesnt have unit too but i said it should have unit

0Thank You

Arya Pratik 7 years, 3 months ago

Strain

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Immortal Prince 7 years, 3 months ago

Having unit but not dimension

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Pattern of SA1exam of physics with marking scheme chapterwise

Posted by Naina Vashal 5 years, 8 months ago

CBSE > Class 11 > Physics

3 answers

Vishal Karghati 7 years, 3 months ago

What is the marking scheme mam

0Thank You

Aakash Raj 7 years, 3 months ago

Hii

1Thank You

Md Asif 7 years, 3 months ago

What is the marking scheme mam

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Write the derivation of elastic collision in 1 dimension

Posted by Shobhit Mishra 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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When Uranium 238 nucleus originally at rest d e c a y s buy omitting Alpha particle having a speed 1.5 x 10 raise to the power 7 M per second then calculate kinetic energy of the resedual nucleus

Posted by Pranjal Shukla 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Aakash Raj 7 years, 3 months ago

Great

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The linear momentum of a body is increased by 20%. Then what is the percentage of change in k. E.?

Posted by Naman Goswami 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Friction is a necessary evil

Posted by Rudra Singh 7 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Mohit Rao 7 years, 3 months ago

Without friction the body which is in motion is always be in motion

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Simran Sandhu 7 years, 3 months ago

Yes friction is a necessary evil bcoz without friction we can't walk on any surface or if we try to apply breaks without friction the car would not stop

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The length and breadth of a rectangular are measured to be 5.7cm and 3.4cm respectively by an ordinary scale reading up to 0.1cm.Find the precentage error in area of sheet.

Posted by Parth Chaudhary 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Mohit Rao 7 years, 3 months ago

15+-3

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How to get the details of practical

Posted by Samriddhi Shree 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Anuradha Chhonkar 7 years, 3 months ago

1.two experimets -------- 8*2 =16 marks. 2.practical record (lab manual + activity file) ------- 6 marks. 3. Project file ----------- 3 marks. 4. Viva voice ----------- 5 marks. Total --------- 30 marks.

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What topics of physics we must know

Posted by Munish Kumar 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 3 months ago

each and every topic coz it's 11th kab teacher ka dimag fir Jaye don't have any idea aur vo aisa topic dal de jise hum Halke may le rhe hoo...? don't have any idea of it so study and revise all topic that are given in ncert

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A spring is cut into two equal halves. How is the spring constant of each other affected?

Posted by Rishika Thapa 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 7 years, 3 months ago

Then the resulting spring constant of each of the new halves is 2K, that is twice the original one. If a spring of spring constant K is cut into n equal parts then new spring constant of each spring is nK.

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concept of momentum?

Posted by Prakash Singh 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Your physics syllabus complete and your paper is done SA1 then please questions

Posted by Rohin Jaswal 7 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Angle of repose angle of friction

Posted by Rohin Jaswal 7 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Jasmine Jasmine 7 years, 3 months ago

The angle which the resultanted of limiting friction and normal reaction make with normal is called angle of friction. The minimum angle that are inclined makes with horizontal when a body on it just began to slide down is known as angle of repose .

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Please give me half yearly question paper i want to practice.

Posted by Sonali Kumari 7 years, 3 months ago

CBSE > Class 11 > Physics